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Urocyclidae
Urocyclidae is a family of air-breathing land snails, semi-slugs and land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea, (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Some species within this family make and use love darts before mating. Distribution The Urocyclidae are distributed in the Afrotropical realm, including Madagascar, the Comores and the islands of the Gulf of Guinea. Taxonomy The family Urocyclidae consists of 3 subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005), that follows classification of Urocyclinae by Van Goethem (1977):Van Goethem J. (1977). "Révision systématique des Urocyclinae (Mollusca, Pulmonata, Urocyclidae)". ''Musée Royal de l'Afrique Centrale , Annales, Sciences zoologiques'' 218: 355 pp., 4 plates. * subfamily Rhysotininae Schileyko, 2002 * subfamily Sheldoniinae Connolly, 1925 (1912) - synonyms: Peltatinae Godwin-Austen, 1912; Trochonani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhysotina
''Rhysotina'' is a genus of minute, air-breathing land snails, Terrestrial animal, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Rhysotininae of the family Urocyclidae.MolluscaBase eds. (2022). MolluscaBase. Rhysotina Ancey, 1887. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=874856 on 2022-04-11 Species Species within the genus ''Rhysotina'' include: * ''Rhysotina hepatizon'' (Gould, 1845) * ''Rhysotina sublaevis'' G. A. Holyoak & D. T. Holyoak, 2016 * ''Rhysotina welwitschi'' (Morelet, 1866) References * Morelet, A., 1866. - --Coquilles nouvelles recueillies par le Dr. Fr. Welwitsch dans l'Afrique équatoriale et particulièrement dans les provinces d'Angola et de Benguela. Journal de Conchyliologie 14: 153-163 * Morelet A. ["1868"], 1867 Voyage du Dr Friederich Welwitsch exécuté par ordre du Gouvernement Portugais dans les royaumes d'Angola et de Benguella (Afrique équinoxiale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Love Darts
A love dart (also known as a gypsobelum, shooting darts, or just as darts) is a sharp, calcareous or chitinous dart which some hermaphroditic land snails and slugs create. Love darts are both formed and stored internally in a dart sac. These darts are made in sexually mature animals only, and are used as part of the sequence of events during courtship, before actual mating takes place. Darts are quite large compared to the size of the animal: in the case of the semi-slug genus ''Parmarion'', the length of a dart can be up to one fifth that of the semi-slug's foot. The process of using love darts in snails is a form of sexual selection. Prior to copulation, each of the two snails (or slugs) attempts to "shoot" one (or more) darts into the other snail (or slug). There is no organ to receive the dart; this action is more analogous to stabbing, or to being shot with an arrow or flechette. The dart does not fly through the air to reach its target, but is "fired" as a contact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicarionoidea
Helicarionoidea is a superfamily of air-breathing land snails and semi-slugs, terrestrial pulmonate gastropod mollusks in the infraorder Limacoidei. Families There are three families within the superfamily Helicarionoidea: * Helicarionidae Helicarionidae is a family of air-breathing land snails or semi-slugs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea. Distribution The distribution of Helicarionidae includes the eastern Palearctic, Malagasy, In ... * Ariophantidae * Urocyclidae Cladogram The following cladogram shows the phylogenic relationships of this family to other families within the limacoid clade:Hausdorf B. (March 2000). "Biogeography of the Limacoidea sensu lato (Gastropoda: Stylommatophora): Vicariance Events and Long-Distance Dispersal". ''Journal of Biogeography'' 27(2): 379-390. JSTOR Genera Genera of helicarionoids unassigned to families include: * ''Pseudosaphtia'' de Winter, 2008 * ''Saphtia'' de Winter, 2008 * ''Va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochonanina Mozambicensis
''Trochonanina'' is a genus of gastropods belonging to the family Urocyclidae. The species of this genus are found in Africa and Malesia Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms, and also a phytogeographical floristic region in the Paleotropical Kingdom. It has been given different definitions. The .... Species: *'' Trochonanina acutecarinata'' *'' Trochonanina aethiopica'' *'' Trochonanina albolabiata'' *'' Trochonanina albopicta'' *'' Trochonanina alfieriana'' *'' Trochonanina bloyeti'' *'' Trochonanina bollingeri'' *'' Trochonanina bonhouri'' *'' Trochonanina bowkerae'' *'' Trochonanina bunguranensis'' *'' Trochonanina calabarica'' *'' Trochonanina connollyi'' *'' Trochonanina consociata'' *'' Trochonanina coryndoni'' *'' Trochonanina dendrotrochoides'' *'' Trochonanina densestriata'' *'' Trochonanina dybowskii'' *'' Trochonanina elatior'' *'' Trochonanina elgonensis'' *'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of The Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater.) The paper setting out this taxonomy was published in the journal ''Malacologia''. The system encompasses both living and extinct groups, as well as some fossils whose classification as gastropods is uncertain. The Bouchet & Rocroi system was the first complete gastropod taxonomy that primarily employed the concept of clades, and was derived from research on molecular phylogenetics; in this context a clade is a "natural grouping" of organisms based upon a statistical cluster analysis. In contrast, most of the previous overall taxonomic schemes for gastropods relied on morphological features to classify these animals, and used taxon ranks such as order, superorder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-slug
Semi-slugs, also spelled semislugs, are land gastropods whose shells are too small for them to retract into, but not quite vestigial. The shell of some semi-slugs may not be easily visible on casual inspection, because the shell may be covered over with the mantle. This is a type of gastropod that is intermediate between a slug (without an external shell) and a land snail (with a large enough shell to retract completely into). There exist a number of gastropod families that have semi-slugs species.Breure A. S. H. (2010). "The rediscovery of a semi-slug: ''Coloniconcha prima'' Pilsbry, 1933 (Gastropoda, Pleurodontidae) from Hispaniola". ''Basteria'' 74(4-6): 78-86. There exist about 1,000 species of semi-slugs in comparison to about only 500 species of slugs.Burton D. W. (1982). "How to be sluggish". ''Tuatara'' 25(2): 48-63HTM Examples Semi-slugs have a worldwide distribution and have evolved in several families; genera include: * Palearctic and Nearctic ** family Parmacel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulmonate
Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includes many land and freshwater families, and several marine families. The taxon Pulmonata as traditionally defined was found to be polyphyletic in a molecular study per Jörger ''et al.'', dating from 2010. Pulmonata are known from the Carboniferous Period to the present. Pulmonates have a single atrium and kidney, and a concentrated, symmetrical, nervous system. The mantle cavity is located on the right side of the body, and lacks gills, instead being converted into a vascularised lung. Most species have a shell, but no operculum, although the group does also include several shell-less slugs. Pulmonates are hermaphroditic, and some groups possess love darts. Linnean taxonomy The taxonomy of this group according to the taxonomy of the Ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulletin Of The American Museum Of Natural History
The ''Bulletin of the American Museum of Natural History'' is a peer-reviewed scientific journal in the fields of zoology, paleontology, and geology. It is part of a group of journals published by the American Museum of Natural History, in which context it is commonly referred to as the ''Bulletin'' to distinguish it from other series of journals published by the museum. The ''Bulletin'' was founded in 1881, originally for publishing short papers. One of its first editors was the American zoologist and ornithologist Joel Asaph Allen. , The Linda Hall Library of Science, Engineering & Technology, accessed 31 October 2009 Scientists and naturalists who published in the journal in its early years included Sir |
